Home / 505,171.38-697,136.51-344,307.45

Finding the Fourth Proportional to 505,171.38, 697,136.51 and 344,307.45

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Solution

The fourth proportional to 505,171.38, 697,136.51 and 344,307.45 is: 475,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,171.38 : 697,136.51 = 344,307.45 : x
  2. Step 2: Convert to fraction form
    505,171.38/697,136.51 = 344,307.45/x
  3. Step 3: Cross multiply
    505,171.38x = 697,136.51 × 344,307.45
  4. Step 4: Simplify right side
    505,171.38x = 240,029,294,060.00
  5. Step 5: Solve for x
    x = 240,029,294,060.00/505,171.38
  6. Step 6: Final answer
    x = 475,144.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.